介绍八水氢氧化钡制取高纯碳酸钡的工艺, 产品质量及用户使用结果.Introducing the producing process of High Purity Barium CarbonateBarium Hydroxide, product quality and using results.以八水氢氧化钡和尿素为原料, 采用均相沉淀法制备了碳酸钡粉体.Using barium hydroxide octahydrate and u...
Sedan - chairs brought him and his father to the door of the West Szechuan Mercantile Corporation.两乘轿子把他们父子送到西蜀实业公司经营的商业场的后门.Before five in the morning, the sedan bearers washed and cooked rice.早晨不到五点钟, 轿夫们淘米煮饭.The touri...
Add 20 mg. of diatomaceous earth filter aid per liter of solution.对每升溶液加入20毫克硅藻土助滤剂.Acid - washed, flux - calcinated diatomaceous earth is often used.通常使用酸洗的, 通量煅烧硅藻土.Diatomaceous earths are the skeletal remains of the t...
Patricia Hewitt knows a thing or two about how to be well-organised...帕特里夏·休伊特很了解如何做到有条不紊。That was not the life Jack Hewitt planned to live. No way!那不是杰克·休伊特想要的生活，绝对不是！Hewitt had gained entrance to the Hall by pretending...